Finding the Fourth Proportional to 12,402.46, 17,115.70 and 7,098.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,402.46 : 17,115.70 = 7,098.98 : x
2. Step 2: Convert to fraction form
   12,402.46/17,115.70 = 7,098.98/x
3. Step 3: Cross multiply
   12,402.46x = 17,115.70 × 7,098.98
4. Step 4: Simplify right side
   12,402.46x = 121,504,037.03
5. Step 5: Solve for x
   x = 121,504,037.03/12,402.46
6. Step 6: Final answer
   x = 9,796.77